Me and my g/f are having s*x,(we're both 17) we dont want to have a kid yet, we dont use protection, but i dont c*m inside her, we just stop whenever i get close to yea...But i over heard some freinds talking about pre-c*m, and that a gril can get pregnant off of it, how do i know if i pre-c*m, how can i be sure if i do or not???
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